大约有 9,000 项符合查询结果（耗时：0.0376秒） [XML]
What is the difference between IQueryable and IEnumerable?
...rties in particular—one that points to a query provider (e.g., a LINQ to SQL provider) and another one pointing to a query expression representing the IQueryable<T> object as a runtime-traversable abstract syntax tree that can be understood by the given query provider (for the most part, you...
Importing a CSV file into a sqlite3 database table using Python
I have a CSV file and I want to bulk-import this file into my sqlite3 database using Python. the command is ".import .....". but it seems that it cannot work like this. Can anyone give me an example of how to do it in sqlite3? I am using windows just in case.
Thanks
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How to find all the tables in MySQL with specific column names in them?
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@Echo - you can always play with mysqldump with --skip-extended-insert and then grep through the file... dirty but strangely satifying :)
– Ken
Oct 20 '11 at 17:35
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What is Full Text Search vs LIKE
I just read a post mentioning "full text search" in SQL.
6 Answers
6
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When to use MongoDB or other document oriented database systems? [closed]
...m for video- and audio-clips, photos and vector-grafics. We started with MySQL as the database backend and recently included MongoDB for storing all meta-information of the files, because MongoDB better fits the requirements. For example: photos may have Exif information, videos may have audio-t...
Deleting Row in SQLite in Android
This might be a dumb question, but I'm new to SQLite and I can't seem to figure this out. I have 1 table that has columns KEY_ROWID , KEY_NAME , KAY_LATITUDE , and KEY_LONGITUDE . I want the user to be able to select one and delete it; Can anyone give me a direction to start in? My question i...
Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags
...getResultList();
In the first JPQL query, distinct DOES NOT go to the SQL statement. That's why we set the PASS_DISTINCT_THROUGH JPA query hint to false.
DISTINCT has two meanings in JPQL, and here, we need it to deduplicate the Java object references returned by getResultList on the Java...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...什么都没有。这不是一个正常的程序？
接下来，使用十六进制工具 hexedit 查看程序信息。运行命令：hexedit cm2 ,显示如下：
代码:
00000000 7F 45 4C 46 01 01 01 00 4C 69 6E 75 78 00 00 00 .ELF....Linux...
00000010 02 00 03 00 01 00 ...
How to create a database from shell command?
I'm looking for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints?
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Restrict varchar() column to specific values?
...a way to specify, for example 4 distinct values for a varchar column in MS SQL Server 2008?
4 Answers
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